This free online tutorial will walk you through the steps required to install and run Eclipse 3.2.1; the state-of-the-art Integrated Development Environment (IDE) that can be used for multiple programming languages, the most popular being Java.
You'll first need to download the Eclipse zip file from http://download.eclipse.org/eclipse/downloads/ and install it by unzipping it to the root of your hard drive. This should create a C:\eclipse folder on your system.
Eclipse is a memory hog, so you’ll need at least 512 MB of RAM on your system, and a minimum of 1 GB is recommended for a development workstation.
Launching Eclipse
Double-click C:\eclipse\eclipse.exe from Windows Explorer to launch Eclipse for the first time. It’s helpful to create a desktop shortcut to this file to simplify future launches.
Eclipse requires a Java Runtime Environment to be installed on your system, and is not included in the Eclipse download. If you do not have Java installed on your system, you will receive the following error message (Fig 1). To resolve this issue, download and install the Java 1.4.2 SDK from Sun at http://java.sun.com/j2se/1.4.2/download.html (about 55 MB).

Fig 1 - Java Runtime Environment Required to Launch Eclipse
When you run Eclipse for the first time, it will prompt you for a default workspace where it will store your projects (Fig 2). You can accept the default, but I recommend using something simpler like C:\Projects. This will come in handy later on when we try to compile or run our application from the command line.
